Isolationism kept the U. S. out of war, but several thousand left-leaning Americans volunteered to fight in the Spanish Civil. There was also the diversion of a radio "war" as actor-director Orson Welles orchestrated an on-air version of the H. G. Wells 1890s science fiction classic about a Martian invasion of Earth.
Advances in aviation were indeed real, however. The most successful effort belonged to Howard Hughes. Nineteen thirty-eight also marked the advent of the first "superhero," Superman. But the Great Depression was still on-going.
Yet misery in America was not universal. The advent of Swing, pioneered by bandleaders such as Benny Goodman, made the latter thirties a new Jazz Age. And baseball, seemed more exciting than ever. It included the efforts of Detroit's Hank Greenberg to break Babe Ruth's record of sixty homeruns set in 1927.
